<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>demo</title>
</head>
<body>

<script type="text/javascript" src="http://pv.sohu.com/cityjson?ie=utf-8"></script>

<script>

	console.log(returnCitySN);
	
</script>


</body>
</html>